package org.choviwu.top.qg.util;

import cn.hutool.core.map.MapBuilder;
import cn.hutool.core.map.MapUtil;
import com.baidu.aip.imageclassify.AipImageClassify;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.json.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;
import org.choviwu.top.qg.constant.Constants;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

@Data
@Component
@Slf4j
public class BaiduGsUtils {

    public final static Map<String, String> CACHED = MapBuilder.create(new ConcurrentHashMap<String, String>()).build();
    //设置APPID/AK/SK
    @Value("${baidu.appid}")
    private String appid;
    @Value("${baidu.apikey}")
    private String apikey;
    @Value("${baidu.secretkey}")
    private String secretkey;


    @Autowired
    AipImageClassify aipImageClassify;


    private volatile static BaiduGsUtils UTIL = null;

    private BaiduGsUtils() {
    }

    @Bean
    @ConditionalOnMissingBean
    public AipImageClassify aipImageClassify() {
        /**
        * @Description: 初始化一个AipImageClassify
        */
        AipImageClassify aipImageClassify = new AipImageClassify(CACHED.get(Constants.BAIDU_APPID),
                CACHED.get(Constants.BAIDU_APIKEP),
                CACHED.get(Constants.BAIDU_APPSECRET));
        /**
        * 可选：设置网络连接参数
        */
        aipImageClassify.setConnectionTimeoutInMillis(Constants.CONNECT_TIMEOUT_MILLIS_SECOND);
        aipImageClassify.setSocketTimeoutInMillis(Constants.SOCKET_TIMEOUT_MILLIS_SECOND);

        return aipImageClassify;
    }


    /**
     * AI 识别照片
     * @param image
     * @return
     */
    public JSONObject aiImage(String image) {
        HashMap<String, String> options = MapUtil.newHashMap();
        options.put(Constants.BAIDU_NUM, Constants.TEN);
        try {
            JSONObject res = aipImageClassify.advancedGeneral(image, options);
            log.info("AI image result >>>>>>>{}", res);
            return res;
        }catch (Exception e){
            return new JSONObject();
        }
    }

    /**
     * 获取权限token
     * @return 返回示例：
     * {
     * "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
     * "expires_in": 2592000
     * }
     */
    public static String getAuth() {
        // 官网获取的 API Key 更新为你注册的
        String clientId = "Wi0bXOZGfIR9kbR9jg1YiZcm";
        // 官网获取的 Secret Key 更新为你注册的
        String clientSecret = "5YHx4S2aGZmFpvjrp2EHtngsmChvzZZG";
        return getAuth(clientId, clientSecret);
    }

    /**
     * 获取API访问token
     * 该token有一定的有效期，需要自行管理，当失效时需重新获取.
     * @param ak - 百度云官网获取的 API Key
     * @param sk - 百度云官网获取的 Securet Key
     * @return assess_token 示例：
     * "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
     */
    public static String getAuth(String ak, String sk) {
        // 获取token地址
        String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
        String getAccessTokenUrl = authHost
                // 1. grant_type为固定参数
                + "grant_type=client_credentials"
                // 2. 官网获取的 API Key
                + "&client_id=" + ak
                // 3. 官网获取的 Secret Key
                + "&client_secret=" + sk;
        try {
            URL realUrl = new URL(getAccessTokenUrl);
            // 打开和URL之间的连接
            HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.err.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String result = "";
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            /**
             * 返回结果示例
             */
            System.err.println("result:" + result);
            JSONObject jsonObject = new JSONObject(result);
            String access_token = jsonObject.getString("access_token");
            return access_token;
        } catch (Exception e) {
            System.err.printf("获取token失败！");
            e.printStackTrace(System.err);
        }
        return null;
    }
}